Pupal weights and fecundities of spruce budworm from Minnesota had different means, coefficients of variation, and frequency distributions than spruce budworm from New Hampshire. The two variables were correlated in one of the populations but not the other.
Lorimer, Nancy and Bauer, Leah S.
"Spruce Budworm Weight and Fecundity: Means, Frequency Distributions, and Correlations for Two Populations (Lepidoptera: Tortricidae),"
The Great Lakes Entomologist: Vol. 16
, Article 10.
Available at: http://scholar.valpo.edu/tgle/vol16/iss4/10